Argyranthemum frutescens plant named &#39;argymonwi&#39;

ABSTRACT

A distinct cultivar of  Argyranthemum frustescens  plant named ‘Argymonwi’ characterized by its compact ball shaped plant habit, good field performance, white single flowers, dark green coloured leaves, freely flowering with numerous inflorescences per plant.

LATIN NAME OF THE GENUS AND SPECIES OF THE PLANT CLAIMED

Argyranthemum frutescens

VARIETAL DENOMINATION

‘Argymonwi’

BACKGROUND

The present invention relates to a new and distinct cultivar of Marguerite Daisy plant, botanically known as Argyranthemum frutescens and referred to by the cultivar name ‘Argymonwi’. The new cultivar is a product of a planned breeding program conducted by the inventor in Enkhuizen, The Netherlands. The objective of the breeding program was to develop a more compact plant that flowers early and can be grown without growth regulators.

DESCRIPTION OF THE DRAWING

This new Marguerite Daisy plant is illustrated by the accompanying photographic drawing which shows blooms, buds and foliage of the plant in full color, the color shown being as true as can be reasonably obtained by conventional photographic procedures.

DESCRIPTION OF THE NEW CULTIVAR

The following detailed descriptions set forth the distinctive characteristics of this new Marguerite Daisy plant. The data which defines these characteristics were collected from asexual reproductions carried out in Enkhuizen, The Netherlands. The plant history was taken on 25 weeks old plants, grown in the field in Enkhuizen, The Netherlands with day temperatures ranging from 16 to 30 degree C., and night temperatures ranging from 10 to 16 degrees Celsius.

Color references are primarily to the RHS Color Chart of The Royal Horticultural Society of London where general terms of ordinary dictionary significance are used. TABLE 1 Differences between the new cultivar ‘Argymonwi’ and two similar cultivars ‘Sugar Baby’ ‘White Star’ (U.S. Plant ‘Argymonwi’ (Unpatented) Patent No. 10,298) Plant Height 28-29 cm 35 cm 25-27 cm Plant Width 60-70 cm 50-55 cm 55-60 cm Flower 2.2-2.6 cm 1.5-2 cm 2-3 cm diameter Foilage color 144A 144C fading to 4A 144A fading to 12 A Flower 2-4 cm 4 cm 5 cm stem length

-   The plant:     -   -   Classification — Botanical.—Argyranthemum frutescens cv.             ‘Argymonwi’ -   Parentage:     -   -   Female parent.—Proprietary seedling section of Argyranthemum             frutescens, identified as number B8. Breeder's code of the             new plant is C 101-16 (unpatented).         -   Male parent.—Unidentified section of Argyranthemum             frutescens (unpatented). -   Propagation:     -   -   Type cuttings.—Terminal cuttings.         -   Time to intiated roots.—7-10 days at air temperature of 21             degrees C.         -   Time to develop roots.—7-14 days at air temperature of 18             degrees C. -   Plant description:     -   -   Growth habit.—Ball shape.         -   Plant height.—28 cm.         -   Vigor.—Compact.         -   Speading area of plant.—25-30 cm.         -   Strength.—Very good.         -   Branching character.—Freely branching, plants do not require             pinching.         -   Crop time.—About 9 weeks are required to produce a finished             flowering plant in a 10.5 cm container from a good developed             cutting. -   The stem:     -   -   Diameter.—4 mm.         -   Shape.—Round, bit grooved.         -   Anthocyanin pigmentation.—Absent.         -   Length of internode.—2-3 cm.         -   Pubescence.—Absent.         -   Color.—143B. -   The foliage:     -   -   Arrangement.—Alternate.         -   Shape of leaf.—Bipinnatisect.         -   Leaf apex.—Acute.         -   Leaf base.—Attenuate.         -   Texture.—Thick glabrous smooth.         -   Length.—3-3.5 cm.         -   Width.—0.6-1 cm.         -   Depth of incision.—Lanciniate.         -   Color — Upper side.—144A.         -   — Lower side.—144A. Old leaf 146C.         -   Pubescence.—Absent.         -   Petiole.—Absent.         -   Venation — Shape.—Pinnate.         -   — Color.—138A. -   Flower bud:     -   -   Peduncle — Length.—2-4 cm.         -   — Strength.—Strong.         -   — Texture.—Smooth.         -   — Color.—143A.         -   Size of the bud — Length.—3 mm.         -   — Diameter.—3-5 mm.         -   Shape.—Flattened, round.         -   Color.—199A. -   Inflorescence:     -   -   Diameter.—2.2-2.6 cm.         -   Form.—Single flowered.         -   Receptacle height.—0.3 cm.         -   Involucre/phyllaries.—3 series of 5 bracts, tightly to             receptacle.         -   — Shape.—Elliptic, with broad apex.         -   — Margin.—Entire.         -   — Length.—3-4 mm.         -   — Color.—Upper: 137B Lower: 144B.         -   Fragrance.—Absent.         -   Quality of inflorescences.—400 flower/plant depending on age             and growing conditions.         -   Flowering period.—April til October in N-W Europe, plants             flower continuously. -   Ray florets:     -   -   Shape of ray florets.—Ligulate.         -   Apex.—Rounded, little incised.         -   Base.—Cordate.         -   Margin.—Entire.         -   Color.—155B.         -   No. of ray florets per inflorescene.—16-18.         -   Size — Length.—1.2-1.4 cm.         -   — Width.—0.4-0.5 cm.         -   Texture.—Smooth. -   Disc florets:     -   -   Shape of disc florets.—tubular (trumpet shape) with 5 lobes.         -   Color.—12A.         -   Diameter of disc floret.—1 mm.         -   Length of disc floret.—4 mm.         -   Number of disc florets/flower.—±80. -   Androecium:     -   -   Anther color.—Yellow 12A.         -   Pollen color.—Yellow 12A.         -   Amount of pollen.—Only in disc florets, little pollen. -   Gynoecium:     -   -   Pistil number.—One per floret (ray florets only).         -   Pistil length.—±3 mm.         -   Style color.—Yellow green 144D.         -   Style length.—1 mm.         -   Stigma color.—Yellow orange 14A.         -   Stigma shape.—Bilobed.         -   Ovary color.—144C. -   Seed: Seed production is not observed. -   Disease resistance: No susceptibility nor resistance to fungal,     bacterial or viral pathogens has been noted. Material is free of     virus and Chrysanthemum stunt viroid (CSVd). 

1. A new and distinct variety of Argyranthemum frutescens plant, substantially as herein illustrated and described. 